Gast DOA-P707-FB  listed at $200 obo

Gast 2067-v108 listed at $500 obo

These pumps are available locally and are new.

Anyone have experience with these pumps? Would they be suitable for composites? My parts are going to be in bag rather than a mold. Parts are roughly 5' long by 6" wide. 

Any help would be appreciated. 

Thanks

In my opinion both pumps are not ideal for composite work. Just get a cheap rotary vane pump. They are much cheaper, better suited for composite processes and will last virtually forever, membranes will not.

Sorry, it should be an oil bathed Rotary vane. The bigger one is oil free. Which means that the vacuum level is not good enough for resin infusion. For vacuum compression it should be ok, though.
so overkill, no, not by any means except maybe volume flow. But for 500$ you can allmost get an dvp ec 20, wich would be overkill, and which got even better volume flow. Or almost 5 cheap oil bathed vacuum pumps, wich will each suit your needs.

+x

 

oekmont - 6/29/2018 4:17:32 AM

Sorry, it should be an oil bathed Rotary vane. The bigger one is oil free. Which means that the vacuum level is not good enough for resin infusion. For vacuum compression it should be ok, though.
so overkill, no, not by any means except maybe volume flow. But for 500$ you can allmost get an dvp ec 20, wich would be overkill, and which got even better volume flow. Or almost 5 cheap oil bathed vacuum pumps, wich will each suit your needs.

Awesome thanks for the help!

I have used a smaller gast for a long time and it works fine, just a bit noisy compared to others.

Now I use a Rieschle but the Gast is still a working backup.

I used a gast pump when I first started. I was only able to pull 20 from it and for small parts it worked ok but anything of size it was pretty worthless. I picked up a couple Robinair pumps and never looked back. 

I use EC's pump and it works fine. Pulled a good vacuum on my car's front clip (around 1.6m x 1.6m x 0.6m) so will cope with most things.